Finding the Fourth Proportional to 521,681.68, 719,928.18 and 303,884.76
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Solution
The fourth proportional to 521,681.68, 719,928.18 and 303,884.76 is: 419,365.32
Step by Step Solution
- Step 1: Write the proportion equation
521,681.68 : 719,928.18 = 303,884.76 : x - Step 2: Convert to fraction form
521,681.68/719,928.18 = 303,884.76/x - Step 3: Cross multiply
521,681.68x = 719,928.18 × 303,884.76 - Step 4: Simplify right side
521,681.68x = 218,775,202,196.54 - Step 5: Solve for x
x = 218,775,202,196.54/521,681.68 - Step 6: Final answer
x = 419,365.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.